Note: Note: This is a DIY kit, you need to have some knowledge of electronics and ability.  Needs a lot of soldering, you should have enough patience.  S2, S3 is...

Specification:  Color: Black, Blue, Orange.  Bluetooth Version: BT 4.0 or above.  Compatible OS: Android 4.4 or above , iOS 8.0 or above.  Operating Mode: Press Button.  APP Name: Sports+.  App Language:...

Specification:  Basic Parameter:  Material: ABS+silica gel.  Lens: A Three-layer coating anti-blue ray lens, high hardness anti-scratch.  Weight: about 41g.  Colour: Black.  Hardware parameter:  Chipset supplier: JieLi.  Chipset: AC6936d.  Speaker: 1506. ...

Specification:  Compatible OS: Support Android 5.0 and above / iOS 10.0 or above.  App: Lenovo Smart Watch.  App Languages: Danish, Ukrainian, Russian, Bulgarian, Norwegian, Turkish, German, Italian, Czech, Slovak, Polish,...

Specification:  Product size: 44.8mm x 20.3mm x 1.8mm.  Weight: 23g.  Display Screen: 1.06"OLED color touch screen.  Material: PC.  Bluetooth version: 4.0.  Sensor: Heart rate sensor & acceleration sensor.  Battery: 100mAh...

Specification:  Color: Black, Red, Blue.  Compatible OS: Android 4.4, IOS 8.0 or above.  Operating Mode: Single Touch.  Bluetooth Version: 4.0.  Language: English, Chinese, Korean, Spainsh, Japanese, French, Russian, Arabic.  Waterproof:...

Specification:  Color: Black, Rose Gold, Gold, Blue.  Bluetooth Version: BT 4.0 or above.  Compatible OS: Android 4.4 or above , iOS 8.0 or above.  Operating Mode: Single Touch.  APP Name:...

Specification:   Color: Black, Blue, Purple, Red, Green, Orange.  Compatible OS: Android 4.4, IOS 9.0 or above.  Operating Mode: Single Touch.  Bluetooth Version: V4.0.  Language: English, Chinese, Korean, Spanish, Japanese, French, Russian,...